OFFSET
0,5
COMMENTS
Row sums are A171218(n).
FORMULA
EXAMPLE
Triangle begins :
0
1, 1
0, 2, 4
1, 1, 5, 9
0, 2, 4, 10, 16
1, 1, 5, 9, 17, 25
0, 2, 4, 10, 16, 26, 36
1, 1, 5, 9, 17, 25, 37, 49
0, 2, 4, 10, 16, 26, 36, 50, 64
1, 1, 5, 9, 17, 25, 37, 49, 65, 81
CROSSREFS
KEYWORD
AUTHOR
Philippe Deléham, Feb 16 2012
STATUS
approved